Home / 198,540.67-273,996.64-112,516.39

Finding the Fourth Proportional to 198,540.67, 273,996.64 and 112,516.39

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Solution

The fourth proportional to 198,540.67, 273,996.64 and 112,516.39 is: 155,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,540.67 : 273,996.64 = 112,516.39 : x
  2. Step 2: Convert to fraction form
    198,540.67/273,996.64 = 112,516.39/x
  3. Step 3: Cross multiply
    198,540.67x = 273,996.64 × 112,516.39
  4. Step 4: Simplify right side
    198,540.67x = 30,829,113,742.23
  5. Step 5: Solve for x
    x = 30,829,113,742.23/198,540.67
  6. Step 6: Final answer
    x = 155,278.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.